发明人李文辉,郑宇鹏,何建平. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 117558806 A, 授权公告日 2020-03-08.
发明人赵玉洁,韩伟,孙丽萍. "Method for the Synthesis of 2-Oxo-1,2-dihydropyrido[2,3-b]pyrazine-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 110790171 A, 授权公告日 2025-05-13.
发明人唐晓军,王建平,周伟. "A Process for Preparing High-Purity 2-Oxo-1,2-dihydropyrido[2,3-b]pyrazine-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 111729486 B, 授权公告日 2020-11-21.
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